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D-SIMSPAIR
Unveiling the
essence of D-SIMSPAIR
D-SIMSPAIR is a suite of advanced domain-specific decision-support modules for spare parts demand planning and inventory network optimisation in the aviation industry and addresses common pain points in aviation spare parts management.
Common Pain Points
The difficulty of assessing risks and prioritizing pre-emptive measures against technical delays and Aircraft-On-Ground (AOG) situations caused by non-availability of spare parts.
Field behaviour often not being in agreement with relevant planning parameters such as Mean Time Between Unscheduled Removals (MTBUR) and Repair Turnaround Time, leading to shortages which can result in flight cancellations on the one hand and investments that are not necessary on the other hand.
Challenges associated with designing and delivering competitive component support services that can justify higher cost and price, in an environment where MRO organisations are facing enormous cost pressure from airlines.
Modules
The D-SIMSPAIR suite is built on a number of enabling modules comprising a Dashboard from which all Use Cases can be accessed, a Field Parameter Analyser, an Inventory Network Simulator, an Inventory Optimiser and an Expendables Settings Analyser.
Dashboard
Field Parameter Adjustment
Service Performance Analysis
Inventory Outage Alert
Rebalancing Of Serviceable Spares
Multi-Location Inventory Optimisation
D-SIMSPAIR Master Data Module
Concept
The D-SIMSPAIR Core comprises a Discrete Event Simulation platform to simulate the operations of a fleet of aircraft and the spare parts delivery, repair/re-supply and inventory re-balancing cycles with a high degree of fidelity, and an Optimisation engine to determine optimal default inventory quantities and allocations to different stockholding nodes, based on different optimisation criteria and constraints.
D-SIMSPAIR also comprises a powerful Business Process Engine (BPE) which is used to customise and automate critical business processes such as Initial Provisioning, Inventory Outage Alert or Redistribution of Serviceable Spares. These use cases can be stored as pre-set scenarios and picked and executed by a User for different data sets on a regular basis. Each of the use cases has predefined reports. The User is also provided with the capability to download raw output data and perform offline analysis before connecting to the underlying ERP and executing the decisions.
Architecture & Data Management
D-SIMSPAIR has been designed for use either stand-alone or on top of an Enterprise Resource Planning (ERP) system. The various D-SIMSPAIR modules can be hosted either by D-SIMLAB or on an external Cloud or on a server within the customer’s domain.
The D-SIMSPAIR Master Data Module (MDM) is used to consolidate from a multitude of sources of different format (and quality) and manage the input data required to execute the various D-SIMSPAIR use cases. Within the MDM there are functions to extract data from legacy systems, combine multiple data sources, transform them into the D-SIMSPAIR data model, handle inconsistencies and rectify errors. For each use case the desired input data can be selected and loaded into different scenarios to be analysed.
Integration of multiple RSPL and In-Scope files comprises consolidation of modification standards and interchangeability constraints as well as resolution of conflicting information for parameters such as Quantity per Aircraft (QPA), Essentiality Code (ESS), Repair Turnaround Time, Mean Time between Unscheduled Removal (MTBUR), Scrap Rate, Reorder Leadtime, typically required for all part numbers appearing in more than one RSPL.
The D-SIMSPAIR modules can also be integrated with an SAP system through an SAP/D-SIMSPAIR Integration Interface (SII) which is built on web service technology that enables seamless data exchanges, without the need of exporting data to input data files that would then have to be uploaded separately. The SII queries two types of data from the SAP system that are fed into D-SIMSPAIR: (i) field data such as demand, repair return and scrap events, (ii) operational data such current inventory on hand, allocation and status, (iii) master data such as part information. The SII also enables D-SIMSPAIR to commit data back to the SAP system, reflecting an operational decision made by the User. The committed data requires an approval of the SAP data administrator through the SAP WorkBench GUI. The approved data is transformed to either a Stock Purchase Order for procurement of a part number or Stock Transfer Order for transferring of a particular unit from one location to another.
